# a = input('请输入一个整数：')
# if int(a) % 2 == 0:
#     print("偶数")
# else:
#     print("奇数")
#


# for i in range(1,10):
#     print(i)

# range有步长
# for i in range(2,12,2):
#     print(i)
#
